syntax error near unexpected token `newline'

[tom]

/volume1/data/syno_enable_m2_volume.sh: line 8: syntax error near unexpected token newline' /volume1/data/syno_enable_m2_volume.sh: line 8: '

[Dave Russell]

It sounds like you edited the script in a text editor like notepad or copied the source of the script from the website and pasted it into a text editor.

Download the script's .zip or .tar.gz archive, then extract the archive and copy the .sh file to your Synology.
https://github.com/007revad/Synology_enable_M2_volume/blob/main/images/how_to_download_generic.png